Flask filling apparatus



Feb. 13, 1940. w. E. NAYLOR 2,190,457

FLASK FILLING APPARATUS Filed Jan. 28, 1937 4 Sheets-Sheet 1 Feb. 13,1940. w. E. NAYL OR I 2,190,457

..FLASK FILLING APPARATUS Filed Jan 28, 1937 4 Sheets-Sheet 2 Feb. 13,.1940. w. E. NAYLOR FLASK FILLING APPARATUS 4 Sheets-Sheet 3 Filed Jan.28, 1937' v Feb. 13, 1940. w. E. NAYLOR FLASK FILLING APPARATUS 4Sheets-Sheet 4 Filed Jan. 28, 1937 WWW l atented Feb. 13, 1940 UNI-TEDTA ES"PATENT;; F" 1:E@;..

2,190,457 p u 1 FLASK FILLING APPARATUSC f Walter E- y Chicago, 111.,assignor toyThe mounting whereby theassembly of ,pr'oje'ctorand vBeardsley & Piper Company, Chicago; 111., a

corporation of Illinois Application January 28, 1937, SerialNo. 122,700

' 10 Claims. (c1; zit--36 The present invention 'relates generally toap-. I

paratus' for filling, flasks with, moulding sand.

More particularly the invention relates to that type of apparatus whichis designed for use in a foundry or like establishment :andcomprises asthe main parts thereof (1) a frame-likesupporting structure; p (2) anassembly in the form of a v rotary projector and an electric motorfor-driv-' ing the projector and causing it to form wads of sand andproject the latter downwardly into a subjacent flask; and (3) a mountingwhereby the assembly of projector and motor is suspend-1 ed from thesupporting structure so that'it is universally movable to a limitedextent and the -f'projector"may hence be controlledor-manipu lated soas'to cause it to fill all portions of the flask with-the'wads of sand.1

One object of the invention is to provide a flask-filling apparatus ofthis type in which the motor is suspended from the supporting structurefor limited universal movement is ofnovel de sign and is an improvementupon and has certain advantages over that which is'disclosed'in v ed toWalter F. Piper and me on Septemberfl, g

" blocks which constitute the pivotal connections Another object of, theinventionis to provide" a flask 'filling apparatus of the type andcharacter under consideration in which-the mounting for the assembly ofrotary projector and motorcomp'rises a rectangular frame which extendsaround the assembly and i's'pivoted at the ends thereof so that theassembly may be rocked: laterally, and also comprises a yoke whichextends around and is secured to the motor and has its ends resting onand pivotally connected v ,to the central portion of the sidemembers ofthe frame'so that the assembly may be tilted '1 9.) vertically intodifferent angular positions.

A further object of the invention is to provide a flask-fillingapparatus which islgenerally of new'andimproved construction and'is ofsuch design and character that itv is exceptionally rugged andeffectively and 'efiicientlvfulfills its intended purpose. y p i Otherobjects of theinvention and the various advantages and characteristicsof the present flaskfilling apparatus will be apparent from aconsideration of the following; detailed description.

The invention consists in the several novel features which arehereinafter set forth and are I more particularly defined by claimsatthe conclusion hereof. v

United States Letters Patent No. 2,092g328, grant- 'Inthe drawings whichaccompany and form a part of this specification or disclosure and in.which like numerals of. referencedenote correspending parts throughoutthe several views:

Figure 1 is a View partly in verticallongitudinal 3 section andpartlyinside elevation of a-flas'k filling apparatus embodying the invention; IFigure 2 is a fragmentary plan view; i

Figure 3 is an end elevation, parts being broken away for purposes ofillustration; l.

Figure 4 is an enlarged horizontal sectional view taken on the line 4-4of Figure 1 and show-' ing in detail the design and construction of thea frame and yoke which constitute the mounting whereby the assembly ofprojector and motor is supported for limited universal movement;

Figure 5 is a vertical transverse section-taken I on theline 5-5 ofFigure 4 and showing in detail 1 v the constructionand arrangement ofthe rubber.

blocks which constitute the pivotal connections I at the endsoftheframe; l f v Figure 6 is an enlarged vertical "section taken ontheline 6-6 or, Figuref5 and illustrating the internal construction and thearrangement of the" parts of the motor driven rotary projector-and aalso theconstruction and design of the rubber bers of the framef- I I r3 Figure-7 is a perspective of one of thexrubber blocks which-is shownin Figure 6; Figure 8 is a perspectiveofone'of the rubber cylinderswhich constitute snubbers at the endsv of. the yoke; a a

Figure 9 is an enlarged transverse section on the line 9'-9 of rFi'gure1;.and a FigurelO is a perspective of one of the base plates on whichare supported the rubber blocks constituting the pivotal connections atthe ends of the frame; w 40 The apparatus which is shown in ':'thedrawingsconstitutes'thc preferred form of the 'ine vention. It isadapted for use in a foundry or like establishment, operates ashereinafter de-' between'the ends of the yoke and theside memscribed toen a subjaoentflask f with properly 5 slinging assembly in theform of arotarygprojector l2 and an electric motor l3, amounting 9 H forsuspending the assembly from thesupporting structure so that, it" isuniversally move able to a limited extent, mechanism 15 for-sup:- plyingmoulding sand into the projectorhfor' wad forming purposes: and amechanism 16 for.

automatically? moving the assembly so as to cause the projector to fillall portions of the flask f with wads of sand. v

The supporting structure H constitutes a support for the sand supplyingmechanism I5 and the automatic assembly moving mechanism l6 andconsists-of a platform forming frame ll and a plurality of. legs l8 forsupporting the frame in an elevated position over the floor 'of thefoundry or establishment in which the apparatus is employed. The framei1 is rectangular and consists of a 'pair of laterally spaced parallelside beams land a' plurality of cross-beams 2U, 28, 22, 23 and 24. Thecrossebeams are channel shaped in cross-section and extend between andserve to space apart the sidebeams 19 which, as

illustrated in the drawings, are of the same cross-sectional design asthecross-beams. The cross-beams 2B and 2t are located at one end of theframe I! of the supporting structure and are positioned in a verticalmanner and opposed relation. The cross-beams 22 and 23 are centrallypositioned'as far as the frame is concernedland extend vertically and inlaterally spaced relation. The crossbeam 24' is located at the other endof the frame 11 and is suitably secured to the adjacent endsof thesidebeams 19. The legs it are suitably secured atv their upper ends-to thecorners of the 'frame I! and are cross-braced adjacent'to the'ends ofthe supporting structure by diagonally extending bars 25. The frame I!of the supporting structure is supported by the legs l8-at such anelevation orheight that the flask f may be readily moved beneathit intoa position beneath the projector !2. I t l The projector I2 is of therotary variety and corresponds in design and operation to thatwhichiorms the subject matter-of United States d Letters Patent No.2,092,329 granted to the aforesaid Walter F. Piper, on September 7,1937." It

- operates to form wads of the moulding sand or ing tube 34. Thecircular wall 39 is formed inmaterial and to sling" the wads downwardsin rapid succession into the flask f, andcomprises a casing 25, a hopperZlfor delivering sand from the sand supporting mechanism 58 into thecas-- ing,ancl a. rotor 28. The casing 25 is substan I tiallycylindricaland embodies an annular wall" 29 and a pair of circular ordisk-like walls till and 3|. The annular wall 29 is positioned" so thatthe axis thereof extends substantially horizontally and has a downwardlyextending tangentially arranged discharge member 32. The latterconstitutes an outlet for the casing of the projector and is connectedbybolts 33 to the upper end of a vertically extending wad directtegrallywith, and serves as a closure for, one

end of the annular wall 29. The othercircular wall, that is, the wall3!, is formed separately.

from,'. and is .removably secured to, the annular wall of the casinglsoas to permit of access to the interior of the casing. The hopper 2"! :is

adapted to receive moulding sand in stream form from the mechanism l5and serves'to deliver or supply the sand into -the 'casing 2. 5 or theprojector via an inlet opening in the central portion of the wall 31.The rotor '28 of the projector is disposed in the c'entralportion of thecasing 26 and is provided with a hub 56 and a blade 3'1. The hub of therotor is mounted on and keyed to one end of the armature shaft 33 br theelectric motor it so that the rotor is driven directly" from the motorwhen the latter is supplied with current. The blade '31 is connectedrevolutions per minute. The sand which enters the casing from the hopper2? falls into the lower-1 portion of thiecasing, During operation ofthe-- electric motor the blade 31 picks up the sandin the. lower portionof the casing and swings it aroundan arcuate liner 39 until thedischarge 1 member 32 isreached. During travel around the l 1 liner, thesand as the result of the action of centrifugal'force and the shape ofthe blade, ,is

' formed or packed into a wad of closely or densely packed sand whichwhen the blade reaches the thence down-thetube 34 to the flask J;

annular wall YES or the projector casing and e'x tends from the low sideof the discharge member around thewall 29to the high side of the dis'-'charge member. The electric motor to is located, adjacent to thecircular wallfiil of the projector H casing 26. It is coaxiallypositioned with respect .30 in any suitable manner'to said circular wall3b.."

to the projector casing and is fixedly secured 204', member 32 isprojected through thelatter and The liner fits against theinn-erperipheryxof the A fiat plated!) is welded or otherwise fixedly se-ucuredtoithe top portion of the casing of the.

motor l3.

The mounting l4, whereby the assembly of pro; 'jector and motor issuspended fromthe support-" ing structure ll so that it is universallymovable to a limited extent comprises a frame M and af' yoke '62. Theframe is rectangular and is disposed a smallfdistance beneath the framelt of the supporting structure ll;

bers M. 'Iheside members 43 are positioned in parallel relation with thesidebeams 19 of the frame I! of the supporting structure and extend Ialongside of theassembly of projector and motor. They are preferablyformed of pipes and are held in parallel and laterally spaced relationbyway -5o shaped, as shown in Figure 9, and have upwardly i of the endmembers 44. l The latter are. yoke- It surrounds the i assembly ofprojector and motor and consists of a pairv of side-members 13 and apair of end memfacing semicircular seats 45 in the ends thereof.

The ends of the side members 43 of the mounting frame fit within theseseats and are fixedly se-j cured to the ends of theyoke shaped end memebers M by means of U-bolts 4G;

is. The latter extend around thesends of the side members of the 5 frameand project through the endsef the end members. The mountingfr'ame His'suspended .at the ends thereof from the rectangular frame 0 Y H ofthe supportin structure, H by waylof a pair of base plates 47, hangers48, and "a pair of? rubber blocks 18. The base plates 4'! underlie thecentral or arched portions of the yoke-shaped f i' end members 6 3. ofthe framed! andare fixedly.v secured by bolts 50 to the lower ends ofthe hangers d8. Thehangers are four-in number and are arranged in pairsat the ends of-the I mounting frame respectively: The hangers of" onepair are fixedly secured toand depend from the bottom flanges of thecross-beams 2t and 21 and are positioned on opposite sides of, that is,

in straddled relation with respect to; one of the '3 yoke-shaped endmembers 48. 'Thle'hangershoi" the other pair are associated with theotherv end and project downwardly and outwardly on oppo .site sides of"the end member at said other end of the mounting frame and arepreferably formed of cast metal.

corner portions thereof andinto'the'bottomparts of the hangers 48. Therubber blocks 49 are d1sposed between the base plates and the central orarched portions of the yoke shaped end mem: bers 44 of the mountingframe 4| and form piv otal connections .whereby the frame together withthe assembly of projector and'motor is permitted to rock laterally; Theyare located in substantially the same plane as the common axis of theprojector and motor and have convex top and bottom faces. By locatingthe blocks 49 in the aforementioned plane rocking of the frame isextremely easy because the assembly is in'balanced relation as far asthe block formed pivotal connections are concerned. By having the topand bottom faces of the blocks convex the side portions of the blockscompress readily during rocking of the frame and assembly. Due to thefact that the blocks are formed of rubber any' of the blocks and preventlateral or sidewise dis placement of the blocks with respect to the baseplates; The upper portions. of therubber blocks 49 bear against a pairof plates 53 and are confined or held against lateral'displacement withrespect to the plates by means of depending flanges 54. The latter, asshown in Figure 9, are formed integrally with the'plates 53 and lap thesides of the blocks. The plates 53 engage the bottom faces of thecentral or arched portions of the yoke-shaped end members 44 of themounting frame 4| and have'de'pending bosses 55 which fit within sockets56 in the upper portions of the. blocks 49. The depending flanges 54 ofthe blades are spaced inwardly from a plurality of depending lugs 51 onthe central portions of the end members 44' and form abutments or seatsfor the inner ends of a set of set screws. 58. .The set screws, as shownin Figural), extend transversely through the lugs 5'! into abutment withthe flanges 54 and serve to hold the plates in clamped relation withrespect to the end members 44 of the mounting frame. By adjust ng theset screws the frame 4| and the assembly may be shifted laterally withrespect to the rubber blocks 49 into a balanced positicn wherein thecommon. axis of the projector and motor? is disposed in the sameplane-as the pivotal connections which are formed by the blocks. Theblocks 49 are disposed at such an elevation or height that the axis ofthe pivotal connections which they form passes through the center ofmass of theassembly. In order to absorb shock andprevent rebound a pairof rubber cylinders 59 is provided. These cylinders constitute snubbersfor the block, formed pivotal connections at the ends of the The baseplates 41 are H-shaped' and the bolts 50 extend upwardly through theframe and are located beneath the central portions of the base plates41. Bolts 60 serve to connect the snubber-forming cylinders 59 in theiroperative position. These bolts depend from the 'centralportions of theyoke-shaped end members 44 of the mounting frame 4| and have nutsupported washers 6| at their lower end on which the lower ends of thecylinders rest. The upper portions of the bolts extend through slots 62in the plates 53- and slots 63 in the rubber blocks 49.. The lower endsof the bolts extend through comparatively large holes 64 in the centralportions of the base plates and through holes or bores in the cylinders.tend transversely of the plates 53 and the rubber blocks Y49 and permitof lateral adjustment of the frame with respect to the blocks,

The yoke 42 which together with the frame 4| constitutes the mountingwhereby the assembly of projector and motor is suspended from thesupporting structure U for limited universal movement serves to securethe assembly in connected relation with the frame 4| and is disposedsubstantially midway between the endv members 44. It is'in the form of ametal casting and has its ends pivotally connected to the'side members43 of the frame 4| by way of rubber blocks 65 and a pair of bracketplates 66. The central portion of the yoke is flat on the bottom thereofand overlies and is welded or otherwise fixedly secured to theplate4|!0n the top portion of the casing'of the motor l3. The ends of theyoke are located opposite to and spaced equidistantly from the sides ofthe casing of the'motor l3 and are flat on the bottom. The bracketplates 66 which together with the rubber blocks 65 constitute thepivotal connections between theyoke and the side members of the framewhereby the assembly of projector and motor is permitted to tilt up anddown have substantially semicircular seats 61011 the bottom-portionsthereof in which the side members fit, as shown in Figure 6. extend.around the side members 43 and through the bracket; plates-and serve tohold the bracket platesand theside. members in fixed relation. Therubber blocks 65 are similar in character to the blocks 49 at the endsofthe mounting frame They have convex top and bottom faces and are sopositioned with respect to the assembly that the common axisof thepivotal connections which'are formed by the blocks and the bracket 1plates extends substantially through the. center J of mass of theassembly and extends at right angles to the axis of theprojectorand'motor. The

bottom faces of the blocks 65 fit against the top faces of'thebraoketplates 66 and the latter have upwardly extending bosses 69 which fitwithin sockets I0 in'thebottom, portions of the blocks andpreventlateral displacement of the blocks with respect to the bracketplates. The upper portions of the blocks engage and support a pair ofplatesgll and are confined against sidewise U -bolts 58' The slots 62and 63 exdisplacement with respect to such plates by means of dependingflanges 12 along the side margins of the plates. I The plates, as shownin Figure 6, underlie the ends of the yoke42 and have depending bosses13 which fit within sockets 14 within'the upper portions of the rubberblocks .65 and assist the flanges 12 in holding the blocks againstlateral displacement 'With respect to the plates. By reason ofthe factthat the blocks 65 are formed of rubber and the top and bottom facesthereof are convex the sideportions compress'readily and hence theblocks permit of easy or ready vertical tilting of the assembly.

wall is cylindrical.

alignment with the block formed pivotal connections at the sides of theframe 4! for balancing purposes. In order to prevent rebound and alsoabsorb shock during operation of the projector l2' a pair of rubbercylinders TI is provided. These cylinders are disposed over and bearagainst the outer extremities of the yoke 42. They serve as snubbers andare secured in place by means-ofa pair of bolts T8. The latter are fixedto and extend upwardly from the outer portions of' the bracket plates65. The upper portions of the bolts extend through transverse slots 19'in the outer extremities of the yoke and pass through bores Ell in therubber cylinders". Enlarged heads M are formed on the upper ends of thebolts and these bear against the upper ends of the rubber cylinders 1!and hold the cylinders under the desired or proper amount ofcompression. The rubber blocks 65 constitute pivotal connections betweenthe yoke 42 and the side members of the frame whereby the assembly ofprojector and motor is permitted to tilt vertically about an axis whichsubstantially passes through or intersects the center of mass of theassembly and extends at right angles to the motor, and the plates H andset screws 16 consttiute means for shifting the frame and assemblylongitudinally of said pivotal connections in order to effect properbalancing of the assembly. The rubber blocks 49 constitute a pivotalconnection between the ends of the frame 4! and the hangers 48 forpermiting it consisting of the frame M and the yoketithe assembly ofprojector and motor is efiito a limited extent with great facility. Theruboer blocks Ml are disposed in the same plane as the rubber blocks 65.As a result of this the axis of the pivotai' connections which areformed by the blocks t9 intersects the axis of the pivotal connectionswhich are formed by the blocks 65 at substantially the center of mass ofthe assembly of projector and frame. 3

The mechanism 5 for supplying sand to the hopper 2'! comprises a sandreservoir 82 and a delivery chute 83. The reservoir is positioned overthe platform forming frame ll of the sup porting structure H andconsists of a fixed side" The side wall 84 and a rotatable bottom 85.

It is supported by an angle bar frame work over the frame it andembodies a discharge opening 86 in the bottom portion thereof;lowerportion of the sidewall of the reservoir and operates during driveor rotation of the reservoir bottom to de-fiect'the sand in thereservoir out through the discharge opening 36 into A deflector 811' isdisposed within the the upper end of the chute 83. This, chutaas shownin Figures 1 and 2, is mounted on the central portion of the frame 19 ofthe supporting.- structure and is arranged so that the. lower or udischarge end thereof overlies the hopper 21 of, Drive of the reservoirbottom fOl'i. sand feeding or supplying purposes is effected;

the projector.

by means of an electric motor 88, a speed re-' ducing unit 89, a pinion90, and a ring gear 9!,

The electric motor 88 is mounted over the crossbeam 24 of the frame itof the supporting struc- I ture and is connected by a coupling 92 to thespeed reducing unit 89. The driven shaft of this unit carries the pinionwhich, asv shown in Figure l, meshes with and serves to .drivethe,

ring gear 9!. The latter is fixed to the reservoir bottom 85 and issupported by a suitable-bear-- ing structure 93. When the motor 88 isoperated as a result of the supply of current thereto the reservoirbottom 85 as the result of the driving connection between it and themotor is rotated and the sand thereon, as hereinbefore pointed I.

out, is deflected by the deflector 3'! through the discharge opening 86into the chute 83.

livers the sand in stream form into the hopper The latter as a result ofits location and position de-- El from which it passes into theprojector casing as hereinbefore described.

The mechanism l6 forautomatically moving the assembly of projector andmotor round and round so thatkthe projector operates to fill with.

wads of sand all portions of the subjacent flask f is disposed over theassembly and comprises upstanding rod 94, rotatable disk 95, a speedreducing unit 96, and an electric motor 97. The

rod St is fixed at its lower end to a plate 98 which"; is welded orotherwise suitably secured to thef upper part of the central portion ofthe yoke t2. The upper end of the rod 94 is connected'by way of a swiveljoint 99 to a plate I'll!) which extends radially with respect to, anddepends from, the

disk 95. When the disk 95 is driven the plate.

H!!! is swung in a circular course and causes the upper end of the rodto travel in a like course. As the result of such movement or travel ofthe upper end of the rod the assembly is caused to move in such mannerthat the-dis-r I charge chute of the directing tube travels round i andround over the flask f and delivers sand into all portions of thelatter. The joint 99 is connected to the plate by a bolt and arcuateslot connection so that it may be moved toward and away from the centerof the disk when it is desired to adjust the course of movement of theassembly.v The disk 95 is driven from the driven.

shaft of the speed reducing unit 96. The latter, as shown in Figures 2.

structure.

means of a belt and pulley connection m2.

When the electric. motors i3, 88 and Glare in 4 operation the apparatusoperates in the following manner: As the result of drive ofthe-reservoir bottom 81 sand in the reservoir is fed in stream formthrough the chute 83 into the hopper 21.

From this hopper the sand enters the casing 26-;

of the projector and is there formed into wads by the blade equippedrotor. When the wads pass the discharge member 32 they are flungdownwards by the action of the blade through the directing tube 34 andenter the flask While the sand is. being formed into wads within theprojector oasingvthe mechanism lfiqoperates to-move the assembly ofprojector and motor in assembly of projector and motor over the flask itis only necessary to disconnect the swivel joint 99 from the plate I ordisconnect the rod 94 y from the yoke 42.

Q a circular course over the flask. Thismovement of the assembly resultsin the projector discharging its wads of sand into' all portions of the[The herein described apparatus is exceptionally eflicient in operationdue to the specific character and designer the mounting M which permitsoflimited universal movement of the assembly and due to the manner inwhich it supports the assembly permits of movement thereof with aminimum amount of effort or powerr 'If it isdesired manually to move theThe invention is not to be understood asrestricted to the details setforth, sincethese may be modified within the scope of the appendedclaims, withoutdeparting from the spirit and scope of theinvention. t ji Having thus described the invention, what I claim as new and desire tosecure by Letters Patent is:

1.'Inan apparatus of the character described, the combination of asupporting structure, an

assembly consisting of a rotary projector and a projector driving motorat one side of the'pro- I jector and adapted to project mouldingmaterial downwards into a subjacent flask, and a mounting for supportingthe assembly for movement over the flask, comprising a frame extend-.ing around the assembly, .a yoke having the w central portion thereofoverlying and fixed to the assembly and its ends connected pivotally toop.-

posed portions of the frame, and aligned pivrotor type adapted to fill asubjacent flask with mould forming material, an electric motor .con-.nected to one side of, and positioned in substantiallyqcoaxial relationwith, the casing .of the projector and having the armature shaft thereofconnected to drive the projector rotor, and a mounting for supportingthe assembly of projector and motor so that it can be moved universallyto alimited extent in order to permit the projector to direct the wadsinto different portions of the flask, comprising a-rectangular frameextending around the assembly and arranged so that the side membersthereof extend horizontally, a yoke having the central portion thereofoverlying and fixed to the casing of the motor and its ends connectedpivotally to the side members of the frame, and aligned pivotalconnections between the end members of z the frame and the supportingstructure.

versally to a limited extent in order to permit the projector to directthe wads-into different portions of the flask, comprising a rectangularframe extending around the assembly. and having the side member'sthereof arranged so that they extend horizontally, a yoke having thecentral portion thereof overlying and fixed to the Leasing of the motorand having the ends thereof overlying the central portion of the sidemembers I of the frame, blocks of resilient material between the ends ofthe yoke and the underlying portions of the fram'e'side members formingpivotal connections between the yoke and said side members of the frame,and aligned pivotal connections between the end members of the frame andthe supporting structure.

a 4. Inv an apparatus of the characterdescribed, the combination of asupporting structure, a rotary projector of the casing and bladeequipped rotor type adapted to fill a subjacentflask with mould formingmaterial, an electric motor connected to one side of, and positioned insubstantially coaxial relation with, the casing of the projector andhaving the armature shaft thereof connected to drive'the projectorrotor, and a ,frame extending around the assembly and having the sidemembers thereof arranged so that they extend horizontally, a yokehaving, the central portion thereof overlying and fixed to the casing ofthe motor and having the ends thereof overlying the central portions ofthe side members of the frame, blocks of resilient material between theends of the yokes and the underlying portions of the frame side membersforming pivotal connections between the yoke and said side members ofthe frame and a pair of resilient blocks supported by the structure andunderlying the central portions of the end members of the framerespectively and forming pivotalconnections between the frame ends andthe structure. I V

5. In an apparatus of the character describe-d, the'combination of asupporting structure, an

.assembly consisting of a rotary projector and a projector driving motorat one side of the proector and adapted to project mould formingmaterial downwardsinto a subjacent flask, a

der to cause the projector to-project the, material into differentportions of the flask;

6. In an apparatus of the character described, the combination of asupporting structure, an

assembly of rotary projector and'projector driv-' ing motor forprojecting mould forming material downwards into a subjacent flask, apair of laterally spaced side members extending alongside of theassembly and carried by the supporting structure, a yoke having thecentral portion thereof overlying and fixed to the assembly and the endportions thereof overlying the side members, and blocks of resilientmaterial between the end portions of the yoke and the underlyingportions of the side members form ing pivotal connections between theyoke and said side members whereby the assembly may be tilted up anddown in order to cause the pro- .jector to project the material intodifferent por' tions of the flask. 1 '7. In an apparatusof'the"character described,

' the combination ofa supporting structure, a rotary projector of thecasing and blade-equipped rotor type adapted to fill 'a subjacentflaskwith" mould forming material, an electric motor connected to one sideof, and positioned in substantially coaxial relation with, the casing ofthe projector and having the armature shaft thereof connected to drive,the projector rotor, a pair of laterally spaced side members extendingalongside of the-assembly of projector and motor and 7 carried by thesupportingstructura'a yoke ha'v-' 1115" mg the central portion thereofoverlying and fixed to the motor and the end portions thereof overlyingthe side members, blocksof resilient material between said end portionsof the yoke "and the underlying portions of the side members formingpivotal connections whereby the assembly is permitted to tilt up anddown in order I to cause the projector to project the'material nected toone side of, and positioned in substan- 1 tially coaxial relation with,the casing of the pro-'' into different portions of the flask, and meansfor adjusting the yoke and assembly laterally with'respect to the blocksfor balancing purposes. 8. In an apparatus of the character described,the .combination'of a supporting structure, a rotary projector of thecasing and blade-equipped rotor type adapted to fill a subjacent flaskwith mould forming material, an electric motor con jector and having thearmature shaft thereof connected to drive the projector rotor, a pair oflaterally spaced side members extending alongside of the assembly ofprojector and motor and carried by the supporting structure, a yoke havjing' the central portion thereof overlying andfixed to the motor and theend portions thereof overlying the side members, blocks of resilientmaterial between said end portions ofthe yoke and the underlyingportions of theside-members forming pivotal connections whereby the asl.nc sembly iepermitted tov-tiltup and down in order :intodifferentportionstofthe flask, and snubbers to: cause the projectortoiprojectlthev material 'associated withtheend portions of rthesyokeand servmggtoqhom saidna portions an gfthe blocks I clamped-relation.

and underlying portions of the" side members in 9. man apparatus of thecharacter"described;

the combination of a supporting structureyan assembly ofrotaryprojectorandprojector driv ing motor adapted to project mouldforming Ina-, terial downwards into a subjacent flask and normally toextend substantially horizontally, a

mounting for supportingthe' assembly fo j i 'lor ment overthefiaskfcomprising a rectangu1ar frame extending aroundand longitudinallyof-th'e f assembly and arrangedsothat thesidef members, thereof extendhorizontally, aligned-pivotal con nections extending between'theas'sembly and the" side members of the 'fr'ame for "permittings'aidessembly to tiltup and down, and aligned pivotal connectionsextending between the end ture and at substantially right angles tdrsaidnections for assembly balancing purposes.

the combination of a supporting "structure,"a'n

" assembly of rotary-projector and projector driv ing motor adapted toproject "mould forming" material downwards intoa subjacent flask' andnormally to extend substantially horizontally, a

mounting for supporting the assembly for move ment over the flask,comprising a; rectangular frame extending around the assemblyaand ar-'ranged so that the side members thereof extendi 5' horizontally and alsolengthwise of said a' ssembly,- aligned pivotal oonnections between theassembly and the side members of the frame'fon; Y

permitting-the assembly to tilt up and down, and. "p

aligned pivotal connections extending between the central portions ofthe end member's'of the frame and the supporting structure andadapted Vto permit said assembly'to rock sidewis'e and g 1 means for adjustingthe'frame-laterally' with respect to the second mentioned pivotalconnections-for assembly balancing purposes; A

WALTER :NAYLOR.

